I've been using Hangouts a lot for educational purposes, including, most recently, yesterday. This is something that can obviously be monetized, given the right circumstances. And according to this article, the right circumstances are found in 'Helpouts'. The product "will take shape as a marketplace that enables individuals and small and large businesses to buy and sell services via live video." To judge from the screen shots, what these Helpouts look like - a lot - is online learning. Helpouts "will cover a range of categories, including computers, education, food, health, hobbies and repair. One can then imagine services on Helpouts ranging from health consultations and fitness classes to appliance repair support and cooking lessons."